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Tagged with calendar-computations sequences-and-series
2
questions
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formula for date as # day of the gregorian calendar_year (including leap years, excluding leap-seconds)
large to small could go 2021-Jan-02nd.
Suppose want it in U.S. style, 01/02/'21, where 01/01 = January 1st = day#1 of the year (2021).
01|31
02|28,29
03|31
04|30
05|31
06|30
07|31
08|31
09|30
10|31
11|...
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Which day of the week will be $100$ days from now
If today is Wednesday, what day of the week will it be $100$ days from now?
Going forward $1,8,15,\dots,92,99$ days all result in Wednesday. So the $100$th day will be Thursday. But the solution ...